PM6+ Slideshow launch White Window in upper left

[Warren B]

Hi Kirk,

When PM+ slideshow launches the black window with the white square in the upper left corner still appears 100% of the time. This is with build 4128 (7dbb043). Attached is a screen capture.

Thanks,
Warren

Win 10, i7-8086K, 16GB RAM, PM6+ Build 4128